CN209324903U - A kind of high bonding strength high-speed rail brake block - Google Patents
A kind of high bonding strength high-speed rail brake block Download PDFInfo
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- CN209324903U CN209324903U CN201821878272.1U CN201821878272U CN209324903U CN 209324903 U CN209324903 U CN 209324903U CN 201821878272 U CN201821878272 U CN 201821878272U CN 209324903 U CN209324903 U CN 209324903U
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- friction
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- wing plate
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Abstract
The utility model provides a kind of high bonding strength high-speed rail brake block, belongs to the disc-shaped brake device technical field of bullet train.A kind of high bonding strength high-speed rail brake block, including steel back, friction block, triangle support, friction block include metal backing, friction piece, which is characterized in that the metal backing edge is equipped with wing plate, and the wing plate is for blocking friction piece and contacting heat dissipation with friction piece.The utility model is greatly improved the bond strength of friction piece and metal backing by the position-limiting action of wing plate, avoids friction piece in braking process from strongly being scraped and fallen off, improves the reliability of brake block.Contact by wing plate with friction piece can improve the capacity of heat transmission of friction block, reduce the formation probability of local hot spot, improve the service life of brake block.
Description
Technical field
The utility model relates to a kind of high bonding strength high-speed rail brake blocks, belong to the disc-shaped brake device technology of bullet train
Field.
Background technique
Brake pad is the key position and vulnerable part of high-speed train braking system, is produced when brake pad is by train operation
Raw huge kinetic energy is converted into thermal energy, it is desirable that brake lining mechanical strength with higher, good heat resistance and thermal conductivity, stable
The abrasion of frictional behaviour, lower abrasion and reduction to wheel.
In the prior art, Chinese utility model patent, CN204610642 disclose a kind of high-speed track passenger car powder
Last metallurgy brake lining, powder metallurgy brake pad are mainly made of four steel back, friction block, triangle support and butterfly circlip parts.Wherein rub
Cleaning block is made of metal backing and friction piece, and metal plate is made of centrepin and metal backing plane；Friction piece is by three parts material
Material composition --- matrix constituent element, friction component and lubricant component.Triangle support by positioning finger setting, and respectively with it is convex on friction block
Concave spherical surface on spherical surface and metal backing carries out spherical surface fitting；Friction block is designed to regular hexagon, triangle and sector etc. more
Shape, and intermesh and be arranged in triangle support, by centrepin on metal backing and butterfly circlip directly with the steel back
It is fixed.
The shortcomings that above-mentioned prior art includes: that the friction piece on friction block is connected with metal backing by transition metal layer,
Bonding strength is low, poor reliability.Braking even in brake block handling process friction piece be easy with backboard unsticking, cause safety
Hidden danger；This connection type may be unfavorable for abrasive dust discharge it is also possible to friction piece is caused to rotate in braking process；It stops at present
Vehicle chip architecture designs unreasonable, poor thermal conductivity, and heat not easily passs through friction piece and conducts to metal backing, is easy to cause brake block table
Face regional area heat is assembled to form hot spot, so that brake block braking ability fails；The formation of local hot spot also will cause surface
Regional area serious wear forms eccentric wear, shortens service life.
Utility model content
The utility model be solve in the prior art high-speed rail brake block be on active service during friction piece easily with metal backing unsticking
The problem of, and improve the thermal conductivity problem of friction block simultaneously and design.
In order to solve the above technical problems, the specific technical solution of the utility model is, and high bonding strength high-speed rail brake block, packet
Steel back, friction block, triangle support being included, friction block includes metal backing, friction piece, wherein the metal backing edge is equipped with wing plate,
The wing plate is for blocking friction piece and contacting heat dissipation with friction piece.
Further, the wing plate is distributed in hexagonal metallic backboard perpendicular to the both sides of the edge on frictional direction.
Further, the wing plate is structure as a whole with metal backing, and wing plate is formed by punching press or mechanical deflection；Or
Person, the wing plate is seperated molding with metal backing, and the wing plate is fixed by welding in the edge of the metal backing.
Further, the height of the wing plate is not more than 5mm, preferably 1~3mm, and thickness is not more than 1mm.
Further, the friction block further includes centrepin, and the centrepin passes through among the metal backing, centrepin with
It is interference fitted between metal backing, is formed by punching press nesting.
Further, the metal backing surface is equipped with hollow hole, and the friction piece surface is equipped with corresponding with hollow hole
Protrusion, described centrepin one end are equipped with the intracorporal boss of insertion friction.
Further, the friction piece includes matrix constituent element, lubricant component, friction component, and the metal backing surface is also
Equipped with the first hemispherical convex surface, the first hemispherical convex surface is with the triangle support the first of the one side contacted with the metal backing
The fitting of hemispherical concave surface, the triangle support are equipped with the second hemispherical convex surface, the second hemispherical convex surface in the one side contacted with steel back
It is bonded with the second hemispherical concave surface in the steel back.
Further, it is arranged in the triangle support to the friction block intermeshing, and each friction block passes through centrepin
And butterfly circlip is mutually fixed with the steel back.
Further, the metal backing is made of the cast iron materials of copper coating.
The technical solution of another substitution of the utility model are as follows: including steel back, friction block, triangle support, butterfly circlip, rub
Cleaning block includes metal backing, centrepin, friction piece, which is characterized in that the metal backing edge is equipped with more than one pair of metal
Stick or sheet metal, the metal bar or sheet metal are centrosymmetrically arranged in nonmetallic backboard, and the metal bar or sheet metal are used for
It blocks friction piece and contacts heat dissipation with friction piece.
The above-mentioned technical proposal of the utility model has the beneficial effect that:
In above scheme, high bonding strength high-speed rail brake block provided by the utility model, compared with prior art, by
Technology back plate edges are arranged wing plate and are greatly improved the bond strength of friction piece and metal backing by the position-limiting action of wing plate,
Falling off for friction piece in braking process is avoided, the reliability of brake block is improved.Contact by wing plate with friction piece can improve and rub
The capacity of heat transmission of cleaning block reduces the formation probability of local hot spot, improves the service life of brake block.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the high bonding strength high-speed rail brake block of embodiment 1；
Fig. 2 is the structure schematic diagram of the high bonding strength high-speed rail brake block of embodiment 1；
Fig. 3 is the whole structural schematic diagram of 1 friction block of embodiment；
Fig. 4 is the structural schematic diagram of 1 metal backing of embodiment；
Fig. 5 is the structural schematic diagram of 1 centrepin of embodiment；
Fig. 6, Fig. 7 are respectively the front and back structural schematic diagram of 1 triangle support of embodiment；
Fig. 8 is the structural schematic diagram of 1 butterfly circlip of embodiment；
Fig. 9 is the structural schematic diagram of 1 steel back of embodiment；
Figure 10 is the structural schematic diagram of 2 metal backing of embodiment.
[main element symbol description]
1. steel back, 2. friction blocks, 3. triangle supports, 4. butterfly circlips, 5. metal bars, 11. steel back hemispherical concave surfaces, 21. gold medals
Category backboard, 22. centrepins, 23. friction pieces, 24. wing plates, 25. metal backing hemispherical convex surfaces, 26. boss, 27. grooves, 31.
Triangle support hemispherical concave surface, 32. triangle support hemispherical convex surfaces, 33. locating pins, 41. butterfly circlip inner circles.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
Embodiment 1
As shown in Figure 1 and Figure 2, high bonding strength high-speed rail brake block, including steel back 1, friction block 2, triangle support 3, butterfly circlip
4。
As shown in Figures 3 to 5, friction block 2 includes metal backing 21, centrepin 22, friction piece 23, friction piece 23 and metal
21 shape of backboard is identical, in metal backing 21 perpendicular to the both sides of the edge of frictional direction, is equipped with wing plate 24. in the present embodiment,
For metal backing 21 there are two types of shape, intermediate metal backing 21 is regular hexagon, and the metal backing 21 close to 1 edge of steel back is positive
The edge of hexagon is cut into and the consistent shape in 1 edge of steel back.
Wing plate 24 is structure as a whole with metal backing 21, and wing plate 24 is formed by punching press or mechanical deflection.The shape of wing plate 24
Shape size, which should meet, can just be put into friction piece 23 wherein, prevent friction piece 23 mobile and rotation, and wing plate 24 can be with
Friction piece 23 contacts, and improves the requirement of 23 thermal conductivity of friction piece.
The height of wing plate 24 should may wear in limited time the thickness of the friction piece of remnants thereon no more than friction block, in the present embodiment
In, it is designed as no more than 5mm；Its thickness, which should ensure that, provides enough shear strengths, and can take into account punching press or bend technique
It is required that in the present embodiment, being designed as no more than 1mm.Wing plate 24 can also be fixed on 21 side of metal backing by welding manner
The predetermined position of edge.
When metal backing 21 is regular hexagon, wing plate 24, which should be arranged, is at least arranged in parallel a pair of (should at least be arranged vertical
In parallel a pair of frictional direction), it is rotated with playing the role of limiting friction piece 23, and play certain fixed friction body 23
For the metal backing 21 close to 1 edge of steel back a wing plate 24 should be arranged on one side in cutting edge, and on other sides in effect
Edge one wing plate is at least set.
Friction piece 23 is formed by matrix constituent element, lubricant component, friction component by mixing, cold forming molding, high temperature sintering；
Centrepin 22 is passed through from 21 center of metal backing and is interference fitted with metal backing 21, nested close by punching press.Metal backing
21 are made of the cast iron materials of copper coating.
The intermeshing of friction block 23 is arranged in triangle support 3, fixed by centrepin 22 and butterfly circlip 4 and steel back 1.
It is equipped with boss in one end of centrepin 22, in friction piece 23.
As shown in Figure 6, Figure 7,21 surface of metal backing is equipped with metal backing hemispherical convex surface 25, the convex surface and triangle support 3
Triangle support hemispherical concave surface 31 be bonded, effectively inhibit braking process in brake block deformation, with guarantee brake block rubbing surface with
Brake disc fitting；The surface of metal backing 21 is equipped with hollow hole, close with the protrusions match on 23 surface of friction piece.It plays certain
The effect for preventing friction block 23 from falling off.
Triangle support 3 is equipped with triangle support hemispherical convex surface 32 in the one side contacted with steel back 1, the steel on the convex surface and steel back 1
It carries on the back hemispherical concave surface 11 to be bonded, equally plays the role of preventing deformation, the one side that triangle support 3 is contacted with steel back 1 is arranged small
Differential seat angle, this designs the deformation of brake block in same adjustable braking process, while preferably controlling each friction block and existing
It is worn away in braking process identical.It is additionally provided with step in the concave side of triangle support 3, is equipped with locating pin in 3 convex surface side of triangle support
33, play the role of limiting the rotation of friction piece 23.
The also settable hexagon through-hole in the intermediate position of friction piece 23, can make its in braking process because high temperature generate it is swollen
It is swollen to be eased, smooth fillet is set at the edge of friction piece 23, prevents broken fall off.
As shown in figure 8, the butterfly circlip inner circle 41 on butterfly circlip 4, nested with the groove 27 of centrepin 22 close, guarantee
Friction block 23, triangle support 3,1 three of steel back are fixed together by centrepin 22 with butterfly circlip 4, after friction block to limit
Replacement.
As shown in figure 9, steel back 1 is bilateral symmetry, intermediate position is relatively thin, and has hollow out at two.
In the present embodiment, by the way that wing plate 24 is arranged, so that the movement and rotation of friction piece are effectively limited, it is therefore prevented that
Friction piece falls off, while passing through the conductive force of wing plate 24, improves the capacity of heat transmission of friction block, reduces the formation of local hot spot
Probability improves the service life of brake block.
Embodiment 2
As shown in Figure 10, the present embodiment replaces with friction piece not with metal backing on the basis of the structure of embodiment 1
21 centrosymmetric one or more pairs of metal bars 5 or sheet metal, sheet metal or metal bar 5 weld or other with metal backing 21
Mode connects, and plays the role of identical with wing plate.The height of metal bar 5 or sheet metal, which should be less than friction block, may wear in limited time thereon
Remaining friction piece thickness (typically less than 5 millimeters).
In the embodiments of the present invention, the example for only listing hexagonal metallic backboard and friction piece, this is practical new
The technical solution of type can be generalized in other geometries such as triangle friction block, equally also in the protection of the utility model
Within the scope of.
It is preferred embodiments of the present invention above, it is noted that for those skilled in the art
For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of high bonding strength high-speed rail brake block, including steel back, friction block, triangle support, friction block include metal backing, friction
Body, which is characterized in that the metal backing edge is equipped with wing plate, and the wing plate is dissipated for blocking friction piece and contacting with friction piece
Heat.
2. high bonding strength high-speed rail brake block as described in claim 1, which is characterized in that the wing plate is one with metal backing
Body structure, wing plate are formed by punching press or mechanical deflection；Alternatively, the wing plate is formed with metal backing to be seperated, and the wing
Plate is fixed by welding in the edge of the metal backing.
3. high bonding strength high-speed rail brake block as described in claim 1, which is characterized in that the height of the wing plate is not more than
5mm, thickness are not more than 1mm.
4. high bonding strength high-speed rail brake block as described in any one of claims 1 to 3, which is characterized in that the friction block is also
Including centrepin, the centrepin passes through among metal backing, is interference fitted between centrepin and metal backing, passes through punching press
Nesting molding.
5. high bonding strength high-speed rail brake block as claimed in claim 4, which is characterized in that the metal backing surface is equipped with and engraves
Emptying aperture, the friction piece surface are equipped with protrusion corresponding with hollow hole, and it is intracorporal convex that described centrepin one end is equipped with insertion friction
Platform.
6. high bonding strength high-speed rail brake block as described in any one of claims 1 to 3, which is characterized in that the friction piece packet
Matrix constituent element, lubricant component, friction component are included, the metal backing surface is additionally provided with the first hemispherical convex surface, the first hemispherical
First hemispherical concave surface of the one side that convex surface is contacted with the triangle support with metal backing is bonded, the triangle support with the steel
The one side of back contacts is equipped with the second hemispherical convex surface, and the second hemispherical concave surface on the second hemispherical convex surface and the steel back is pasted
It closes.
7. high bonding strength high-speed rail brake block as claimed in claim 6, which is characterized in that friction block intermeshing ground row
Cloth is in the triangle support, and each friction block is mutually fixed by centrepin and butterfly circlip with the steel back.
8. high bonding strength high-speed rail brake block as described in any one of claims 1 to 3, which is characterized in that the metal backing
It is made of the cast iron materials of copper coating.
9. a kind of high bonding strength high-speed rail brake block, including steel back, friction block, triangle support, butterfly circlip, friction block include metal
Backboard, centrepin, friction piece, which is characterized in that the metal backing edge is equipped with more than one pair of metal bar or sheet metal, institute
Metal bar or sheet metal is stated to be centrosymmetrically arranged in nonmetallic backboard, the metal bar or sheet metal for block friction piece and with
Friction piece contact heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878272.1U CN209324903U (en) | 2018-11-15 | 2018-11-15 | A kind of high bonding strength high-speed rail brake block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878272.1U CN209324903U (en) | 2018-11-15 | 2018-11-15 | A kind of high bonding strength high-speed rail brake block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324903U true CN209324903U (en) | 2019-08-30 |
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ID=67710335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821878272.1U Active CN209324903U (en) | 2018-11-15 | 2018-11-15 | A kind of high bonding strength high-speed rail brake block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469695A (en) * | 2018-11-15 | 2019-03-15 | 北京科技大学 | A kind of high bonding strength high-speed rail brake block |
-
2018
- 2018-11-15 CN CN201821878272.1U patent/CN209324903U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469695A (en) * | 2018-11-15 | 2019-03-15 | 北京科技大学 | A kind of high bonding strength high-speed rail brake block |
| CN109469695B (en) * | 2018-11-15 | 2024-06-04 | 北京科技大学 | High-connection-strength high-speed rail brake block |
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